4581993507 has 128 divisors (see below), whose sum is σ = 8343552000. Its totient is φ = 2167824384.

The previous prime is 4581993463. The next prime is 4581993511. The reversal of 4581993507 is 7053991854.

It is not a de Polignac number, because 4581993507 - 2⁷ = 4581993379 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4581993507.

It is not an unprimeable number, because it can be changed into a prime (4581993517) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 23024994 + ... + 23025192.

It is an arithmetic number, because the mean of its divisors is an integer number (65184000).

Almost surely, 2^4581993507 is an apocalyptic number.

4581993507 is a deficient number, since it is larger than the sum of its proper divisors (3761558493).

4581993507 is a wasteful number, since it uses less digits than its factorization.

4581993507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457.

The product of its (nonzero) digits is 1360800, while the sum is 51.

The square root of 4581993507 is about 67690.4240421051. The cubic root of 4581993507 is about 1660.9306132131.

The spelling of 4581993507 in words is "four billion, five hundred eighty-one million, nine hundred ninety-three thousand, five hundred seven".